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<FONT color="green">001</FONT>    package org.hackystat.dailyprojectdata.resource.snapshot;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.io.Serializable;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.Comparator;<a name="line.4"></a>
<FONT color="green">005</FONT>    <a name="line.5"></a>
<FONT color="green">006</FONT>    import javax.xml.datatype.XMLGregorianCalendar;<a name="line.6"></a>
<FONT color="green">007</FONT>    <a name="line.7"></a>
<FONT color="green">008</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.SensorDataRef;<a name="line.8"></a>
<FONT color="green">009</FONT>    import org.hackystat.utilities.tstamp.Tstamp;<a name="line.9"></a>
<FONT color="green">010</FONT>    <a name="line.10"></a>
<FONT color="green">011</FONT>    /**<a name="line.11"></a>
<FONT color="green">012</FONT>     * Comparator that allows &lt;code&gt;SensorDataRef&lt;/code&gt;s to be sorted by their timestamp.<a name="line.12"></a>
<FONT color="green">013</FONT>     * <a name="line.13"></a>
<FONT color="green">014</FONT>     * @author jsakuda<a name="line.14"></a>
<FONT color="green">015</FONT>     * <a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    public class SensorDataRefComparator implements Comparator&lt;SensorDataRef&gt;, Serializable {<a name="line.17"></a>
<FONT color="green">018</FONT>      /** Generated serial id. */<a name="line.18"></a>
<FONT color="green">019</FONT>      private static final long serialVersionUID = -1334273923611860686L;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>      /** The order of the sorting. */<a name="line.21"></a>
<FONT color="green">022</FONT>      private boolean ascending = true;<a name="line.22"></a>
<FONT color="green">023</FONT>    <a name="line.23"></a>
<FONT color="green">024</FONT>      /**<a name="line.24"></a>
<FONT color="green">025</FONT>       * Creates a new comparator.<a name="line.25"></a>
<FONT color="green">026</FONT>       * <a name="line.26"></a>
<FONT color="green">027</FONT>       * @param ascending True if the &lt;code&gt;SensorDataRef&lt;/code&gt;s are being sorted in ascending<a name="line.27"></a>
<FONT color="green">028</FONT>       *          order, otherwise false for descending.<a name="line.28"></a>
<FONT color="green">029</FONT>       */<a name="line.29"></a>
<FONT color="green">030</FONT>      public SensorDataRefComparator(boolean ascending) {<a name="line.30"></a>
<FONT color="green">031</FONT>        this.ascending = ascending;<a name="line.31"></a>
<FONT color="green">032</FONT>      }<a name="line.32"></a>
<FONT color="green">033</FONT>    <a name="line.33"></a>
<FONT color="green">034</FONT>      /**<a name="line.34"></a>
<FONT color="green">035</FONT>       * Compares two SensorDataRefs.<a name="line.35"></a>
<FONT color="green">036</FONT>       * <a name="line.36"></a>
<FONT color="green">037</FONT>       * @param o1 The first ref.<a name="line.37"></a>
<FONT color="green">038</FONT>       * @param o2 The second ref.<a name="line.38"></a>
<FONT color="green">039</FONT>       * @return Returns -1, 0, or 1 if the first argument is less than, equal to, or greater than<a name="line.39"></a>
<FONT color="green">040</FONT>       *         the second.<a name="line.40"></a>
<FONT color="green">041</FONT>       */<a name="line.41"></a>
<FONT color="green">042</FONT>      public int compare(SensorDataRef o1, SensorDataRef o2) {<a name="line.42"></a>
<FONT color="green">043</FONT>        int result = this.compare(o1.getTimestamp(), o2.getTimestamp());<a name="line.43"></a>
<FONT color="green">044</FONT>        <a name="line.44"></a>
<FONT color="green">045</FONT>        if (!ascending) {<a name="line.45"></a>
<FONT color="green">046</FONT>          // descending sort order, change result to be in reverse order<a name="line.46"></a>
<FONT color="green">047</FONT>          result = result * -1;<a name="line.47"></a>
<FONT color="green">048</FONT>        }<a name="line.48"></a>
<FONT color="green">049</FONT>        <a name="line.49"></a>
<FONT color="green">050</FONT>        return result;<a name="line.50"></a>
<FONT color="green">051</FONT>      }<a name="line.51"></a>
<FONT color="green">052</FONT>    <a name="line.52"></a>
<FONT color="green">053</FONT>      /**<a name="line.53"></a>
<FONT color="green">054</FONT>       * Compares two timestamps.<a name="line.54"></a>
<FONT color="green">055</FONT>       * <a name="line.55"></a>
<FONT color="green">056</FONT>       * @param cal1 The first timestamp.<a name="line.56"></a>
<FONT color="green">057</FONT>       * @param cal2 The second timestamp.<a name="line.57"></a>
<FONT color="green">058</FONT>       * @return Returns -1 if cal1 &lt; cal2, 1 if cal1 &gt; cal2, otherwise returns 0.<a name="line.58"></a>
<FONT color="green">059</FONT>       */<a name="line.59"></a>
<FONT color="green">060</FONT>      private int compare(XMLGregorianCalendar cal1, XMLGregorianCalendar cal2) {<a name="line.60"></a>
<FONT color="green">061</FONT>        if (Tstamp.lessThan(cal1, cal2)) {<a name="line.61"></a>
<FONT color="green">062</FONT>          return -1;<a name="line.62"></a>
<FONT color="green">063</FONT>        }<a name="line.63"></a>
<FONT color="green">064</FONT>        else if (Tstamp.greaterThan(cal1, cal2)) {<a name="line.64"></a>
<FONT color="green">065</FONT>          return 1;<a name="line.65"></a>
<FONT color="green">066</FONT>        }<a name="line.66"></a>
<FONT color="green">067</FONT>        return 0;<a name="line.67"></a>
<FONT color="green">068</FONT>      }<a name="line.68"></a>
<FONT color="green">069</FONT>    <a name="line.69"></a>
<FONT color="green">070</FONT>    }<a name="line.70"></a>




























































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